Chapter 3099: Refining the Meridian Guiding Pill

Earth Element Iron was extremely strong and resistant to heat and cold, so it was extremely difficult to forge it.

Thankfully, all things had their weaknesses. The greatest weakness of Earth Element Iron was a kind of acid. Immerse it in this acid for just one day, and the Earth Element Iron would become very soft. By then, it would be very easy to mold it into various shapes.

And it would naturally be no issue to inscribe patterns in it as well.

Very quickly, the Earth Element Iron had been divided into three portions and molded into the shapes that Ling Han required. The next step was the most crucial, and that was to carve formation patterns in them.

The formation foundations of this Three Elements Formation were easier to construct. However, if one were to go any higher, it was reportedly useless to simply carve formation patterns. One also had to be able to draw upon the terrain and heavenly might. It was incomparably profound.